package com.ruoyi.web.controller.common;

import java.awt.image.BufferedImage;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.TimeUnit;
import javax.annotation.Resource;
import javax.imageio.ImageIO;
import javax.servlet.http.HttpServletResponse;
import javax.validation.Valid;

import com.aliyuncs.dysmsapi.model.v20170525.SendSmsResponse;
import com.ruoyi.common.config.RuoYiConfig;
import com.ruoyi.common.constant.UserConstants;
import com.ruoyi.common.core.controller.BaseController;
import com.ruoyi.common.core.domain.entity.SysUser;
import com.ruoyi.common.core.domain.model.LoginBody;
import com.ruoyi.common.core.domain.model.ResetUserPass;
import com.ruoyi.common.utils.SecurityUtils;
import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.framework.web.service.SysLoginService;
import com.ruoyi.system.service.ISysUserService;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiImplicitParams;
import io.swagger.annotations.ApiOperation;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.FastByteArrayOutputStream;
import org.springframework.web.bind.annotation.*;
import com.google.code.kaptcha.Producer;
import com.ruoyi.common.constant.Constants;
import com.ruoyi.common.core.domain.AjaxResult;
import com.ruoyi.common.core.redis.RedisCache;
import com.ruoyi.common.utils.sign.Base64;
import com.ruoyi.common.utils.uuid.IdUtils;
import com.ruoyi.system.service.ISysConfigService;

import static com.ruoyi.common.utils.SecurityUtils.getUsername;

/**
 * 验证码操作处理
 * 
 * @author ruoyi
 */
@Api(tags = "验证码操作处理")
@RestController
public class CaptchaController extends BaseController {
    @Resource(name = "captchaProducer")
    private Producer captchaProducer;

    @Resource(name = "captchaProducerMath")
    private Producer captchaProducerMath;

    @Autowired
    private RedisCache redisCache;
    
    @Autowired
    private ISysConfigService configService;

    @Autowired
    private ISysUserService userService;

    @Resource
    private SendMessage sendMessage;

    @Autowired
    private SysLoginService loginService;


    /**
     * 生成验证码
     */
    @GetMapping("/captchaImage")
    public AjaxResult getCode(HttpServletResponse response) throws IOException
    {
        AjaxResult ajax = AjaxResult.success();
        boolean captchaOnOff = configService.selectCaptchaOnOff();
        ajax.put("captchaOnOff", captchaOnOff);
        if (!captchaOnOff)
        {
            return ajax;
        }

        // 保存验证码信息
        String uuid = IdUtils.simpleUUID();
        String verifyKey = Constants.CAPTCHA_CODE_KEY + uuid;

        String capStr = null, code = null;
        BufferedImage image = null;

        // 生成验证码
        String captchaType = RuoYiConfig.getCaptchaType();
        if ("math".equals(captchaType))
        {
            String capText = captchaProducerMath.createText();
            capStr = capText.substring(0, capText.lastIndexOf("@"));
            code = capText.substring(capText.lastIndexOf("@") + 1);
            image = captchaProducerMath.createImage(capStr);
        }
        else if ("char".equals(captchaType))
        {
            capStr = code = captchaProducer.createText();
            image = captchaProducer.createImage(capStr);
        }

        System.out.println("====code==="+code);
        redisCache.setCacheObject(verifyKey, code, Constants.PHONE_CODE_EXPIRATION, TimeUnit.MINUTES);
        // 转换流信息写出
        FastByteArrayOutputStream os = new FastByteArrayOutputStream();
        try
        {
            ImageIO.write(image, "jpg", os);
        }
        catch (IOException e)
        {
            return AjaxResult.error(e.getMessage());
        }

        ajax.put("uuid", uuid);
        ajax.put("img", Base64.encode(os.toByteArray()));
        return ajax;
    }


    /**
     * 手机发送验证码
     */
    @ApiOperation(value = "手机发送验证码")
    @ApiImplicitParams({
            @ApiImplicitParam(name = "phone", value = "手机号"),

    })
    @GetMapping("/phone/code")
    public AjaxResult sendMessage(@RequestParam(name = "phoneNum",required = true) String phoneNum) throws IOException
    {
        AjaxResult ajax = AjaxResult.success();
        if (StringUtils.isNotEmpty(phoneNum)
                && UserConstants.UNIQUE.equals(userService.checkPhoneExist(phoneNum)))
        {
            return AjaxResult.error("手机号码不存在");
        }
        Map<String,String> map=new HashMap<>();

        String code=sendMessage.createRandomNum(6);
        map.put("code",code);

            try {
                SendSmsResponse response = sendMessage.sendSms(phoneNum,  Constants.LOGIN_CODE,map);

                if (!Constants.SUCCESS_MESSAGE.equals(response.getCode())) {
                    System.out.println("======短信错误码======="+response.getCode());
                    return AjaxResult.error("发送失败");
                }
            } catch (com.aliyun.mns.common.ClientException e) {
                e.printStackTrace();
                return AjaxResult.error("发送失败");
            } catch (com.aliyuncs.exceptions.ClientException e) {
                e.printStackTrace();
            } catch (UnsupportedEncodingException e) {
                e.printStackTrace();
            }
        // 保存验证码信息
        String uuid = IdUtils.simpleUUID();
        String verifyKey = Constants.PHONE_CODE_KEY + uuid;
        redisCache.setCacheObject(verifyKey, code, Constants.PHONE_CODE_EXPIRATION, TimeUnit.MINUTES);

        ajax.put("uuid", uuid);

        return ajax;
    }


    /**
     * 忘记密码重置
     *
     * @param resetUserPass 用户提交信息
     * @return 结果
     */
    @ApiOperation(value = "忘记密码重置")
    @PostMapping("/reset/pass")
    public AjaxResult login(@Valid  @RequestBody ResetUserPass resetUserPass)
    {
        AjaxResult ajax = AjaxResult.success();
        // 校验手机号
       loginService.validatePhoneCode(resetUserPass.getCode(),
                resetUserPass.getUuid());


        SysUser user =userService.selectUserPhone(resetUserPass.getPhoneNum());
        if(user!=null){
            user.setPassword(SecurityUtils.encryptPassword(resetUserPass.getPassword()));
            return toAjax(userService.resetPwd(user));
        }
        return ajax;

    }
}
